An atom that is negatively charged because it has accepted an electron is a(n):
A. isotope.
B. isomer.
C. ion.
D. monomer.
C
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Which of the following is not a category of symbiosis?
A. Parasitism B. Commensalism C. Communalism D. Mutualism
Which of the following is NOT true of type I
Herpes simplex? a. It is a DNA virus. b. It has a latent phase in its replication cycle. c. It remains in nerve cells for a time. d. Sunburn or other stress can activate it. e. Once activated it causes a form of skin cancer
Which type of forensic evidence was available for scientists studying the case of the Romanovs?
A) fingerprint B) toxicology C) DNA D) footprint
Which eukaryotic organelles likely arose from symbiotic relationships between larger cells and bacteria?
a. nuclei b. endoplasmic reticulums c. vacuoles and chloroplasts d. mitochondria and chloroplasts e. mitochondria and Golgi complexes